LT Donald Penn hasn't missed a game in his six-year career (112 appearances, 108 starts).(USATSI)

Veteran left tackle Donald Penn traveled to Oakland Thursday evening for a visit with the Raiders on Friday, an NFL source confirmed. Penn was released by the Tampa Bay Buccaneers earlier in the day, shortly after the team signed Anthony Collins.

Penn has been a standout lineman for years, and would be a quality replacement for Rodger Saffold, who failed a team-administered physical on Wednesday and had his contract offer rescinded. Saffold has since re-signed with the St. Louis Rams.

Collins is younger, and Penn's 2014 cap hit was $8 million and carried just $666,000 in dead money if released.

Penn has been a starter in Tampa Bay since 2007 and hasn’t missed a game in six seasons. He is steady and probably a better fit at left tackle than Saffold, an oft-injured veteran projected by many as an interior lineman.

Penn reportedly has other suitors, including Washington and Carolina. No team has more money than the Raiders, who would like to lock Penn down and use the No. 5 pick in the draft on a playmaker on offense or defense.